Specifications
Key specifications |
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| Minimum focus distance | 180 cm |
| Autofocus | Yes |
| Image stabilization | No |
| Sensor compatibility | Vollformat |
General information |
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| Manufacturer | Sigma |
| Product type | Lenses |
| Item number | 238741 |
| Manufacturer no. | 738962 |
| Release date | 06.05.2010 |
Colour |
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| Colour group |
Black
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Camera lens properties
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Camera lens properties
A camera lens (also known as photographic lens, objective lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically. |
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Lens type
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Lens typeWith photo lenses, a further distinction is made according to the angle of view which determines the focal length for a given image format. |
Normal Lens
,
Telephoto lens
,
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Telephoto lensIn photography and cinematography, a telephoto lens is a specific type of a long-focus lens in which the physical length of the lens is shorter than the focal length. This is achieved by incorporating a special lens group known as a telephoto group that extends the light path to create a long-focus lens in a much shorter overall design. The angle of view and other effects of long-focus lenses are the same for telephoto lenses of the same specified focal length. Long-focal-length lenses are often informally referred to as telephoto lenses although this is technically incorrect: a telephoto lens specifically incorporates the telephoto group.
Super zoom lens
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Super zoom lensThe term superzoom or hyperzoom refers to photographic zoom lenses with unconventionally large focal length factors, typically more than 5× or even ranging beyond 15×. |
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Lens mount
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Lens mountA lens mount is an interface — mechanical and often also electrical — between a photographic camera body and a lens. It is confined to cameras where the body allows interchangeable lenses, most usually the single lens reflex type or any movie camera of 16 mm or higher gauge. Lens mounts are also used to connect optical components in instrumentation that may not involve a camera, such as the modular components used in optical laboratory prototyping which join via C-mount or T-mount elements. |
Sony Alpha
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Focal length
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Focal lengthThe focal length of an optical system is a measure of how strongly it converges (focuses) or diverges (diffuses) light. A system with a shorter focal length has greater optical power than one with a long focal length. |
50 - 500 mm
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Focal Length APS-C / DX (35mm film equivalent)
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Focal Length APS-C / DX (35mm film equivalent)In photography, the 35 mm equivalent focal length is a measure that indicates the angle of view of a particular combination of a camera lens and film or sensor size. The term is useful because most photographers experienced with interchangeable lenses are most familiar with the 35 mm film format. |
75 - 750 mm
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| Sensor compatibility |
Vollformat
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| Number of diaphragm blades |
9 x
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Filter thread
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Filter threadA filter thread is a connecting thread of photo and video lenses for optical filters. This thread is usually located on the front just before the front lens. Most lenses have a separate mount for lens hoods. |
95 mm
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Number of lenses
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Number of lensesA lens is an optical device which transmits and refracts light, converging or diverging the beam. |
22
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Number of lens groups
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Number of lens groupsSpecifies how many groups the lenses are divided into. |
16
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Zoom function
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Zoom functionThe device has a zoom function. |
Yes
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Optical zoom
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Optical zoomA zoom lens is a mechanical assembly of lens elements with the ability to vary its focal length (and thus angle of view), as opposed to a fixed focal length (FFL) lens. |
10 x
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| Fixed front lens |
Yes
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Internal focusing
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Internal focusingInternal focusing, abbreviated IF, is a type of lens design in which the distance is not adjusted by shifting the entire lens, but only one or more lenses within the lens. The remaining lenses, especially the front lens, maintain their distance from the image capture plane (filament net, film or image sensor), which does not change the overall length of the lens. |
Yes
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Focusing
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FocusingIn geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge. Although the focus is conceptually a point, physically the focus has a spatial extent, called the blur circle. This non-ideal focusing may be caused by aberrations of the imaging optics. In the absence of significant aberrations, the smallest possible blur circle is the Airy disc, which is caused by diffraction from the optical system's aperture. Aberrations tend to get worse as the aperture diameter increases, while the Airy circle is smallest for large apertures. |
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Autofocus
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AutofocusAutofocus (or AF) is a feature of some optical systems that allows them to obtain (and in some systems to also continuously maintain) correct focus on a subject, instead of requiring the operator to adjust focus manually. |
Yes
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Manual focus
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Manual focusIt is possible to focus manually. The autofocus is therefore not used. |
Yes
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Minimum focus distance
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Minimum focus distanceThe shortest distance supported. |
180 cm
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Diaphgragm properties
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Diaphgragm propertiesIn optics, a diaphragm is a thin opaque structure with an opening (aperture) at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture. |
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Minimum aperture f/
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Minimum aperture f/In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. The aperture determines how collimated the admitted rays are, which is of great importance for the appearance at the image plane. If an aperture is narrow, then highly collimated rays are admitted, resulting in a sharp focus at the image plane. If an aperture is wide, then uncollimated rays are admitted, resulting in a sharp focus only for rays with a certain focal length. This means that a wide aperture results in an image that is sharp around what the lens is focusing on and blurred otherwise. The aperture also determines how many of the incoming rays are actually admitted and thus how much light reaches the image plane (the narrower the aperture, the darker the image for a given exposure time). |
22 x
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Product dimensions
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Product dimensionsPhysical size of an object |
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| Diameter |
10.44 cm
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| Weight |
1.97 kg
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| Length |
21.90 cm
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Properties |
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Durability
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DurabilityThe resistance of a product against outer physical influence (like water, fire, shocks). |
Metal mount
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Delivery contents
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Delivery contentsThe scope of delivery means the included accessories. |
Lens hood
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Lens hoodIn photography, a lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. |
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Returns and warranty
Dead on arrival (DOA) 10 Days Bring-in
Warranty 30 Years Bring-in
Out-of-warranty repairs Available for a fee.
30-day right of return
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30-day right of return
A minimum of 10% will be deducted from opened products. Unfortunately, we cannot accept a product if it is damaged, incomplete or missing its original packaging.
Returns and warranty
Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty
Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.
Insurance
All Risk
All RiskInsure your device with allrisk by allianz against falls, impact, breakage, screen damage and damage caused by water or humidity. Improper use (call and data misuse) due to theft is also covered. With your purchase, you accept the general terms and conditions. |
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| 1 Year | CHF 51.– |
| 2 years | CHF 87.– |
Allgemeine Versicherungsbedingungen Allianz.PDF | 305.75 KB | GermanGeneral Insurance Conditions Allianz.PDF | 302.08 KB | EnglishConditions geneerales dassurance Allianz.PDF | 358.63 KB | FrenchCondizioni generali di assicurazione Allianz.PDF | 353.45 KB | Italian
Availability
Mail delivery/Collection
Product is not ready for sale or temporarily not available. No delivery date known.
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Information subject to change.
Matching accessories
Filters (photography)
CHF 112.–
B+W 010 F-Pro E, UV-Filter (95mm, UV-Filter)
Availability
Mail delivery
-
6 piece(s)
in our warehouse
Collection
- Basel: today at 13:10
- Bern: tomorrow at 12:45
- Dietikon: today at 14:30
- Geneva: tomorrow at 13:30
- Kriens: today at 12:00
- Lausanne: tomorrow at 15:40
- St Gallen: today at 15:30
- Winterthur: today at 13:30
- Wohlen: today at 11:00
- Zurich: today at 17:30
PickMup
-
6 piece(s)
What is PickMup?
If ordered immediately.
Information subject to change.
Various lens accessories
CHF 19.–
Hüfa Lens Cap Holder
Availability
Mail delivery
-
More than 10 piece(s)
in our warehouse
Collection
- Basel: today at 13:10
- Bern: tomorrow at 12:45
- Dietikon: today at 14:30
- Geneva: tomorrow at 13:30
- Kriens: today at 12:00
- Lausanne: tomorrow at 15:40
- St Gallen: today at 15:30
- Winterthur: today at 13:30
- Wohlen: today at 11:00
- Zurich: today at 17:30
PickMup
-
More than 10 piece(s)
What is PickMup?
If ordered immediately.
Information subject to change.
Hygiene + Cleaning products
CHF 13.40
Hama Lenspen, Reinigungsstift
Availability
Mail delivery
-
More than 10 piece(s)
in our warehouse
Collection
- Basel: today at 13:10
- Bern: tomorrow at 12:45
- Dietikon: today at 14:30
- Geneva: tomorrow at 13:30
- Kriens: today at 12:00
- Lausanne: Only 1 piece(s)
- St Gallen: today at 15:30
- Winterthur: today at 13:30
- Wohlen: today at 11:00
- Zurich: today at 17:30
PickMup
-
More than 10 piece(s)
What is PickMup?
If ordered immediately.
Information subject to change.
Customer questions and answers
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